For an open chamber head you definitely wouldn't want to do that. I run 65cc open chamber 308's and that puts my compression ratio at about 9.8:1.
But the OP is talking about using a closed chamber head, so he'll need to check for interference. The "zero deck" thing is a confusing way to look at those pistons, because if you zero decked the block the majority of the piston would be .030" over the deck. If you cut the piston .018" so the top of the piston is even with the deck, it's not really a true zero deck because you still have that outer shoulder section that's .012" below the deck.